57409444 has 24 divisors (see below), whose sum is σ = 104227200. Its totient is φ = 27636000.

The previous prime is 57409421. The next prime is 57409447. The reversal of 57409444 is 44490475.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (57409447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76069 + ... + 76819.

It is an arithmetic number, because the mean of its divisors is an integer number (4342800).

Almost surely, 2^57409444 is an apocalyptic number.

It is an amenable number.

57409444 is a deficient number, since it is larger than the sum of its proper divisors (46817756).

57409444 is a wasteful number, since it uses less digits than its factorization.

57409444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443 (or 1441 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 57409444 is about 7576.9020054373. The cubic root of 57409444 is about 385.7694041815.

The spelling of 57409444 in words is "fifty-seven million, four hundred nine thousand, four hundred forty-four".